Display panel or portion thereof with a transitional mixed reality graphical user interface



FIG. 1 is a front view of a display panel or portion thereof with thetransitional mixed reality graphical user interface showing a firstimage in the sequence thereof; and

FIG. 2 is a front view of a display panel or portion thereof with thetransitional mixed reality graphical user interface showing a secondimage in the sequence thereof; and,

FIG. 3 is a front view of a display panel or portion thereof with thetransitional mixed reality graphical user interface showing a thirdimage in the sequence thereof.

The appearance of the image sequentially transitions between the imagesshown in FIGS. 1 through 3 . The process or period in which one imagetransitions to another forms no part of the claimed design.

The broken lines depicting a display panel or portion thereof areincluded for the purpose of illustrating environmental structure andform no part of the claimed design. The broken lines depicting portionsof a graphical user interface are included for illustratingenvironmental aspects of a display panel or portion thereof with atransitional mixed reality graphical user interface and form no part ofthe claimed design.

CLAIM The ornamental design for a display panel or portion thereof witha transitional mixed reality graphical user interface, as shown anddescribed.